Doeringer, P. B., & Vermeulen, B. (1981). Jobs and training in the 1980s: Vocational policy and the labor market. M. Nijhoff Pub.
Lua i Stíl Chicago (17ú heag.)Doeringer, Peter B., agus Bruce Vermeulen. Jobs and Training in the 1980s: Vocational Policy and the Labor Market. Boston: M. Nijhoff Pub, 1981.
Lua MLA (9ú heag.)Doeringer, Peter B., agus Bruce Vermeulen. Jobs and Training in the 1980s: Vocational Policy and the Labor Market. M. Nijhoff Pub, 1981.
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